PASCO ME-8230 User Manual Download

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Instruction Manual

012-13762C

Materials Testing Machine

ME-8236

Part of the

Materials Testing System

ME-8230

7100 N

Load Cell

Leadscrews

Calibration

Rod and Nut

Load Bar

(crosshead)

Tensile Samples*

(60)

Sensor

Cable

Load Bar

Round Nut

Velcro® Loop

Material

Safety Shield (2)

Velcro® Hook

Material

WARNING: Provide proper eye

protection when using the Materials

Testing Machine or its Accessories.

Operate the Materials Testing Machine

behind protective Safety Shields.

Crankshaft

Base

USB Link*

*Items from the

ME-8230 Materials

Testing System

Materials Testing

Machine

Summary of Contents for ME-8230

Page 1: ...ad Tensile Samples 60 Sensor Cable Load Bar Round Nut Velcro Loop Material Safety Shield 2 Velcro Hook Material WARNING Provide proper eye protection when using the Materials Testing Machine or its Accessories Operate the Materials Testing Machine behind protective Safety Shields Crankshaft Base USB Link Items from the ME 8230 Materials Testing System Materials Testing Machine ...

Page 2: ... or in compression The load bar round nut is used to connect one end of a tensile sample to the load bar for example or can be used to attach an accessory or adapter to the load bar The safety shields attach to the Velcro loop material on the front and back of the load bar Materials Testing System The Materials Testing System ME 8230 consists of the Materials Testing Machine plus a PASPORT interfa...

Page 3: ...ounting the Materials Testing Machine firmly to a sturdy support calibrating the Machine mounting the item to be tested onto the Materials Testing Machine connecting the Materials Testing Machine to an interface for data recording and then turning the crank to apply tension stretching compression squeezing bend ing or shearing cutting forces to the test item Secure the Materials Testing Machine Th...

Page 4: ... will block any fragments that may come from the calibration rod in case it accidentally breaks Prepare to Record Calibration Data Connect the plug on the sensor cable into a PASPORT inter face such as the USB Link Connect the interface to a USB port on a computer Start the PASCO Capstone software Prepare to use the soft ware to calibrate the Material Testing Machine Optional Change Sign Note that...

Page 5: ...e described in the appendix Step Three Click Next to show the illustration in Step Three Install the calibration rod In addition to the illustration a Graph display of Position m versus Force N opens A Digits display of Force N is part of the Graph display Step Four Click Next to open Step Four Record a smooth data run Figure Step One Calibration window NOTE Detailed information about the calibrat...

Page 6: ...nomial Fit NOTE By default the Show Curve Fit Editor window is open in the Polynomial Fit window If the message Curve fit was successful is shown click Next to open Step Six Name the calibration NOTE If the curve fit was not successful use trial and change in the Curve Fit Editor to adjust the coef ficients until the curve fit is successful Click Update Fit to determine if the new coefficients mad...

Page 7: ...ck of the Load Bar Adjust the position of the shields so that they will block any fragments that may come from the sample Record Data Prepare PASCO Capstone software to record data If there is a stored calibration file that is to be used select it in the Calibration window Start data recording in the software Turn the crank in a clockwise direction to apply a tension force to the tensile sample Ob...

Page 8: ...nto the load cell Put the threaded section of the other clamp up through the hole in the load bar and use the sample nut to hold the upper clamp NOTE Do not completely tighten the sample nut yet Carefully place one end of a coupon between the jaws of the bottom clamp While holding the moveable jaw to keep it aligned with the fixed jaw use the tee handle and socket to tighten the hex nut CAUTION Ea...

Page 9: ...sample Use a sample that is long enough so that it extends about 1 4 6 mm beyond the front and back pieces Doing this makes it easier to remove the sample remnants from the accessory after the test Adjust the position of the load bar so that it rests on the top surface of the front piece Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material...

Page 10: ... Use the included hex key to remove the screws that hold the two parts of the clamp together Put the ends of a structures beam such as a 3 I Beam into one part of each clamp and then use the screws to reattach the other part of each clamp Screw the clamp with the short threaded end into the top of the load cell and put the other clamp through the hole in the load bar Use the sample nut to secure t...

Page 11: ... their laborato ries and classrooms and are not sold for profit Reproduction under any other circumstances without the written consent of PASCO sci entific is prohibited Trademarks PASCO PASCO Capstone PASPORT SPARK Science Learning System SPARK SLS and SPARKvue are trademarks or registered trademarks of PASCO sci entific in the United States and or in other countries For more infor mation visit w...

Page 12: ...he Machine Mounting the Calibration Rod To mount the calibration rod for tension screw the short threaded end of the rod into the top of the load cell Lower the load bar until the threaded part at the top of the calibration rod goes through the hole in the load bar Screw the load bar round nut onto the top of the calibration rod To mount the calibration rod for compression screw the short threaded...

Page 13: ...he icon for the Materials Testing System is linked to the icon for the interface Step One In the software select the Calibration icon in the Tools palette to open Calibration window There are two choices for the type of measurement that can be calibrated The default choice is Materials Testing System Compliance Calibration Use this choice in most cases The other choice is Materials Testing System ...

Page 14: ...ect an existing calibration Menu list of existing calibrations Import Calibration From Sensor Use this to import a calibra tion that has been stored in the sensor Menu list of calibrations shored in the sensor Use Raw Values Display voltages for force and position Manage Existing Calibration Delete Calibration Rename Calibration or Save Calibration in Sensor NOTE Up to four calibrations can be sto...

Page 15: ...ll the calibration rod In addition to the illustration a Graph display of Position m versus Force N opens A Digits display of Force N is overlaid on the Graph display Figure Step Three Install the calibration Figure Calibration Graph and Digits Displays Position m Force N Digits display of Force N Tool bar ...

Page 16: ...the crank counter clockwise and watch the Digits display Reduce the force to between 10 N and 20 N try not to let the force go to zero 6 Start turning the crank clockwise again to increase the force on the calibration rod as before If the second plot tracks on top of the first plot slowly turn the crank counter clockwise until the force on the Digits display is between 10 and 20 N Then carefully i...

Page 17: ... to increase the number of terms in the polyno mial Click 1 to decrease the number of terms in the polynomial Current Value This column shows the values calculated automatically by the curve fit algorithm The A value is the coefficient for the zeroth order term the B value is the coefficient for the First order term and so on MSE This is an abbreviation for Mean Squared Error It is one way to quan...

Page 18: ...ration window click the Calibra tion icon in the Tools palette From the File menu save the Capstone file for future use More Help See the Online Help System for the PASCO Capstone software Contact PASCO Technical Support Figure Use Calibration Figure Save Experiment As ...

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